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tests for SetCompact and GetCompact of CBigNum

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This commit is contained in:
Christian von Roques 2012-09-15 19:08:50 +02:00
parent 0a4e67afad
commit 6f0cecfc47
1 changed files with 53 additions and 0 deletions
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53
src/test/bignum_tests.cpp
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@ -122,4 +122,57 @@ BOOST_AUTO_TEST_CASE(bignum_setint64)
}
}
BOOST_AUTO_TEST_CASE(bignum_SetCompact)
{
CBigNum num;
num.SetCompact(0);
BOOST_CHECK_EQUAL(num.GetHex(), "0");
BOOST_CHECK_EQUAL(num.GetCompact(), 0);
num.SetCompact(0x00123456);
BOOST_CHECK_EQUAL(num.GetHex(), "0");
BOOST_CHECK_EQUAL(num.GetCompact(), 0);
num.SetCompact(0x01123456);
BOOST_CHECK_EQUAL(num.GetHex(), "12");
BOOST_CHECK_EQUAL(num.GetCompact(), 0x01120000);
// Make sure that we don't generate compacts with the 0x00800000 bit set
num = 0x80;
BOOST_CHECK_EQUAL(num.GetCompact(), 0x02008000);
num.SetCompact(0x01fedcba);
BOOST_CHECK_EQUAL(num.GetHex(), "-7e");
BOOST_CHECK_EQUAL(num.GetCompact(), 0x01fe0000);
num.SetCompact(0x02123456);
BOOST_CHECK_EQUAL(num.GetHex(), "1234");
BOOST_CHECK_EQUAL(num.GetCompact(), 0x02123400);
num.SetCompact(0x03123456);
BOOST_CHECK_EQUAL(num.GetHex(), "123456");
BOOST_CHECK_EQUAL(num.GetCompact(), 0x03123456);
num.SetCompact(0x04123456);
BOOST_CHECK_EQUAL(num.GetHex(), "12345600");
BOOST_CHECK_EQUAL(num.GetCompact(), 0x04123456);
num.SetCompact(0x04923456);
BOOST_CHECK_EQUAL(num.GetHex(), "-12345600");
BOOST_CHECK_EQUAL(num.GetCompact(), 0x04923456);
num.SetCompact(0x05009234);
BOOST_CHECK_EQUAL(num.GetHex(), "92340000");
BOOST_CHECK_EQUAL(num.GetCompact(), 0x05009234);
num.SetCompact(0x20123456);
BOOST_CHECK_EQUAL(num.GetHex(), "1234560000000000000000000000000000000000000000000000000000000000");
BOOST_CHECK_EQUAL(num.GetCompact(), 0x20123456);
num.SetCompact(0xff123456);
BOOST_CHECK_EQUAL(num.GetHex(), "123456000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000");
BOOST_CHECK_EQUAL(num.GetCompact(), 0xff123456);
}
BOOST_AUTO_TEST_SUITE_END()